Presenting 2 stimuli simultaneously (with different durations)

[David McFarlane]

Still catching up from a hiatus, sorry to revive 
an old thread but wanted to adress this for the record.

Yes, you could do this with only two "events" 
(i.e., stimulus objects), simply by judicious use 
of width & position items on the Frame tab of the 
Property Pages for the objects.  I have done this 
myself.  You might have to also use a transparent 
backround on your two hemifield items so that 
they do not occlude the fixation when they 
appear.  Um, come to think of it, transparent 
background alone might do the trick in this case.

-- David McFarlane


At 1/30/2012 07:42 AM Monday, you wrote:
>Hi Robert,
>
>
>The latter solution is what I always use, three slides: fixation,
>stimuli and intertrialinterval. I'd say that according to e-prime
>logic this is a more sensible setup than trying to have items from one
>slide (event) remain while a next slide starts.
>
>Also: you might find that 'an e-primer' by Spapé en Verdonschot is an
>useful starting point for getting a grip on e-prime's machinations ;)
>You can download it here: step.psy.cmu.edu/materials/EPrimer.pdf .
>
>Best,
>
>AW
>
>On Jan 29, 11:24 pm, Robert Zimmerman <rzimmerl... at gmail.com> wrote:
> > I am new to using E-Prime, and in charge of programming studies for a
> > small lab that does not have much knowledge of the program in general.
> > We are trying to program a visual hemifield experiment in which an
> > item will be presented either to the left or the right of a fixation
> > point. We want the fixation point ("+") to come on-screen 500ms BEFORE
> > the item, remain on screen while the item is presented, and remain on
> > screen after the item clears for another 2000ms. Does anybody know if
> > it is possible to do this with 2 events, a fixation event and a target
> > item event, which overlap? Or will I need to set up 3 events, fixation
> > for 500ms, followed by item with fixation for 175ms, followed by
> > fixation for 2000ms, presented serially? Any help is much appreciated!
> > Thank you.
>
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